Question

Anyone good with vectors?

Answer 1

@hartnn .. finally :p

Answer 2

how about teaching me @hartnn ,instead of "giving medals unnecessarily :P "

Answer 3

i was just glad that you could post questions now...!

Answer 4

haha!
Do you know of someone good with vectors?
As I need sorta backup of the entire thing, that what it is....!

Answer 5

many people,including me, can help you with the beginning of vectors :)
if you go deep, i won't be sure...

Answer 6

Actually, I've got no idea of what they are :p
I was absent from the school for soo long...!!!

Answer 7

Scalars only have magnitude, no direction...
like x, 10, abc....

Vectors, on the other hand, are defined by both MAGNITUDE and DIRECTION
like
\(\bar a = 4 \angle 30 ^o \\ or, \bar x = \bar i +\bar j \)

Answer 8

Alright, So, how about those triangle rule of vector addiction and those of parallelograms.. I mean I got a DPP in hand, and know... nothing about the terms..!
I mean my teachers tried... but....!

Answer 9

http://www.mathsisfun.com/algebra/vectors.html

Answer 10

Just a question, since it says simply joining them head to tail , gives you the resultant , so


So, here is where the problem comes...
I mean they are the same..... So, why do we need to use any other formula for the purpose..!

Answer 11

Vector addition :
triangle and parallelogram laws

http://www.onlinemathlearning.com/vector-addition.html

i could teach you here, but there are readymade videos!
so you can watch them and ask me doubts here...

Answer 12

And sorry for bad drawing, I can't help it!

Answer 13

why do we have other formulas ??

1) head to tail won't always work.
2) there's always some alternate ways to solve any problems in maths

Answer 14

Well, I was actually particularly talking w.r.t. the direction of the resultant vector, I mean in some cases it is taken from the tail of a vector to the head of the other

and in some cases the other way.....

I'm just asking, that How can I get rid of this confusion that What do they actually mean ?
those opposite directions and all other stuff!

Answer 15

it is always from HEAD of 1st vector to
TAIL of 2nd vector